Dyeing composition for dyeing keratinous fibres comprising a particular dicationic monoazo dye
US7060110B2 · kind B2 · utility
29Cited by
12References
40Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 3, 2002 |
| Grant date | Jun 13, 2006 |
| Priority date | — |
| Expiry date | Sep 28, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B44/10
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention concerns a novel dyeing composition for dying keratinous fibers, in particular human hair, comprising a dicationic monoazo dye, and the dyeing method using said composition and the novel compounds of formulae (I) or (II).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.